Apatite (20.10 Carat )

16.36 x 16.36 mm
Stone Type : | Apatite |
Stone Shape : | Cushion |
Stone Weight : | 20.10 carat |
Length X Width : | 16.36 x 16.36 mm |
Length / Width Ratio : | 1.00 |
Approx Face-up Area : | 240.81 mm² |
Approx Volume : | 1,256.21 mm³ |
How many Colors Available for Apatite ?
White , Light Red , Red , Dark Red , Orangey Red , Light Orange , Orange , Light Brown , Brown , Dark Brown , Light Yellow , Yellow , Light Yellowish Green , Yellowish Green , Dark Yellowish Green , Light Green , Green , Dark Green , Light Bluish Green , Bluish Green , Dark Bluish Green , Light Blue , Blue , Dark Blue , Light Violet , Violet , Dark Violet , Light Purple , Purple , Dark Purple , Light Grey , Grey ,
































Apatite can appear in wide variety of colors, which is why it’s often mistaken for other gems. This characteristic actually gave it the name - from the Greek word apatao, which means "to deceive".
Name of Stone : | Apatite |
Mineral : | Apatite |
Shape : | Cushion |
Chemical Formula : | Ca5(PO4)3(F,OH,Cl) |
Crystal Structure : | Hexagonal |
Hardness : | 5 |
Specific Gravity : | 3.2 |
Carat weight : | 20.10 carat |
Gram weight : | 4.020 gm |
Ounces weight : | 0.1418 ounces |
Length : | 16.36 mm |
Width : | 16.36 mm |
Length / Width Ratio : | 1.00 |
Average diameter : | 16.36 mm |
Approx Face-up Area : | 240.81 mm² |
Approx Volume : | 1,256.21 mm³ |
Refractive Index : | 1.628 - 1.651 |
Cleavage : | Indistinct |
Luster : | Vitreous |
Birefringence : | 0.002 - 0.008 |
Wearability : | Good |
Birthstone : | Apatite is not an official birthstone for any month |
Before purchasing a diamond, one should make sure it looks its weight. It's important to understand that carat weight does not equal face-up size.
Two diamonds of exactly the same weight (and shape) can vary quite considerably in face-up size. This depends on the proportions of the cut (e.g., deep cuts will face up smaller)..
Face-up area is a measure of the size of the diamond when viewed from the top view.
It tells you how big the diamond is at the girdle plane. It's important for a diamond to have sufficient face-up size for its carat weight
Diamond prices vary greatly as they depend on the combination of unique characteristics (4Cs - Cut, Color, Clarity, and Carat). For best value, it's important to choose the combination that will reduce the price without having a negative impact on appearance.
You also need to consider some of the following points as well
- Strong blue fluorescence.
- Fair or Poor symmetry.
- Extremely thin or extremely thick girdle.
- Inclusions visible to the naked eye.
- Diamond Certification.
Blue fluorescence can have a positive, negative, or zero effect on a diamond. Diamonds in the lower color range (H or lower) can benefit from it, as it can make them look whiter, more colorless. On the other hand, strong fluorescence can cause a stone (especially in the higher color range D-G) to appear hazy or milky under certain light conditions. One of the biggest benefits of fluorescent diamonds is that they generally cost less.
Blue fluorescence can be found in 35% of naturally mined diamonds and it makes the stone glow under UV light. Outside of UV lighting environments, there are no visual differences between fluorescent and non-fluorescent diamonds.
However, there exists a big difference in pricing between these diamonds. In the industry, diamonds with fluorescence are usually traded at a 10-15% discount and can go as high as 25% for higher colored diamonds.
GIA grades fluorescence as None, Faint, Medium, Strong, and Very Strong.
There are Many Laboratory Available which provides certification for Gemstones.
- GIA - Gemological Institute of America
- AGS - American Gemological Society
- HRD - The Hoge Raad voor Diamant
- IGI - International Gemological Institute
- EGL - European Gemological Laboratories
- GSI - Gemological Science International
*Different certification labs give different results
Piecut Diamonds are set of small Diamonds, which are cut & polished with Precised Measurements to look like a Single Solitaire diamond which can save 80% to 85% from Solitaire Single Piece Price.
Shapes of Pie Cut Diamonds.
- 9 Pcs Emerald
- 9 Pcs Round
- 4 Pcs Round
- 3 Pcs Heart
- 4 Pcs Oval
- 4 Pcs Pear
- 4 Pcs Marquise
- 5 Pcs Star
Click here for More Information
1.10 ct - Cushion - Apatite
1.70 ct - Cushion - Apatite
1.70 ct - Cushion - Apatite
11.60 ct - Cushion - Apatite
10.00 ct - Cushion - Apatite
16.60 ct - Cushion - Apatite
20.40 ct - Cushion - Apatite
29.30 ct - Cushion - Apatite
24.40 ct - Cushion - Apatite
38.60 ct - Cushion - Apatite
30.60 ct - Cushion - Apatite
36.70 ct - Cushion - Apatite
1.70 ct - Cushion - Apatite
1.70 ct - Cushion - Apatite
11.60 ct - Cushion - Apatite
10.00 ct - Cushion - Apatite
16.60 ct - Cushion - Apatite
20.40 ct - Cushion - Apatite
29.30 ct - Cushion - Apatite
24.40 ct - Cushion - Apatite
38.60 ct - Cushion - Apatite
30.60 ct - Cushion - Apatite
36.70 ct - Cushion - Apatite
4.90 ct - Tanzanite - Marquise
3.60 ct - Beryl - Marquise
4.90 ct - Alexandrite - Baguette
8.90 ct - Kunzite - Cushion
3.40 ct - Spinel - Princess
3.30 ct - Ruby - Trillion
19.60 ct - Sapphire - Oval
13.60 ct - Alexandrite - Trillion
16.00 ct - Sapphire - Emerald
15.20 ct - Diamond - Emerald
18.50 ct - Alexandrite - Cushion
15.00 ct - Tanzanite - Princess
25.90 ct - Peridot - Marquise
28.40 ct - Sapphire - Round
29.20 ct - Aquamarine - Oval
29.60 ct - Tanzanite - Pear
23.70 ct - Tanzanite - Emerald
22.00 ct - Diopside - Baguette
35.80 ct - Ruby - Princess
33.40 ct - Morganite - Oval
33.00 ct - Spinel - Round
32.20 ct - Morganite - Emerald
40.00 ct - Peridot - Pear
40.00 ct - Kunzite - Emerald
V S
3.60 ct - Beryl - Marquise
4.90 ct - Alexandrite - Baguette
V S
8.90 ct - Kunzite - Cushion
3.40 ct - Spinel - Princess
V S
3.30 ct - Ruby - Trillion
19.60 ct - Sapphire - Oval
V S
13.60 ct - Alexandrite - Trillion
16.00 ct - Sapphire - Emerald
V S
15.20 ct - Diamond - Emerald
18.50 ct - Alexandrite - Cushion
V S
15.00 ct - Tanzanite - Princess
25.90 ct - Peridot - Marquise
V S
28.40 ct - Sapphire - Round
29.20 ct - Aquamarine - Oval
V S
29.60 ct - Tanzanite - Pear
23.70 ct - Tanzanite - Emerald
V S
22.00 ct - Diopside - Baguette
35.80 ct - Ruby - Princess
V S
33.40 ct - Morganite - Oval
33.00 ct - Spinel - Round
V S
32.20 ct - Morganite - Emerald
40.00 ct - Peridot - Pear
V S
40.00 ct - Kunzite - Emerald
5.20 ct - Emerald- Diamond
8.50 ct - Round- Diamond
2.20 ct - Oval- Diamond
9.00 ct - Baguette- Diamond
5.00 ct - Emerald- Diamond
5.90 ct - Baguette- Diamond
17.60 ct - Pear- Diamond
16.20 ct - Cushion- Diamond
16.90 ct - Emerald- Diamond
19.60 ct - Cushion- Diamond
12.60 ct - Marquise- Diamond
14.20 ct - Cushion- Diamond
29.20 ct - Emerald- Diamond
20.00 ct - Cushion- Diamond
25.70 ct - Emerald- Diamond
27.80 ct - Cushion- Diamond
20.10 ct - Emerald- Diamond
22.30 ct - Pear- Diamond
34.80 ct - Emerald- Diamond
38.40 ct - Pear- Diamond
34.50 ct - Emerald- Diamond
39.20 ct - Pear- Diamond
30.90 ct - Oval- Diamond
30.60 ct - Oval- Diamond
V S
8.50 ct - Round- Diamond
2.20 ct - Oval- Diamond
V S
9.00 ct - Baguette- Diamond
5.00 ct - Emerald- Diamond
V S
5.90 ct - Baguette- Diamond
17.60 ct - Pear- Diamond
V S
16.20 ct - Cushion- Diamond
16.90 ct - Emerald- Diamond
V S
19.60 ct - Cushion- Diamond
12.60 ct - Marquise- Diamond
V S
14.20 ct - Cushion- Diamond
29.20 ct - Emerald- Diamond
V S
20.00 ct - Cushion- Diamond
25.70 ct - Emerald- Diamond
V S
27.80 ct - Cushion- Diamond
20.10 ct - Emerald- Diamond
V S
22.30 ct - Pear- Diamond
34.80 ct - Emerald- Diamond
V S
38.40 ct - Pear- Diamond
34.50 ct - Emerald- Diamond
V S
39.20 ct - Pear- Diamond
30.90 ct - Oval- Diamond
V S
30.60 ct - Oval- Diamond